package com.itheima.reggie.service.imp;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Lazy;
import org.springframework.stereotype.Service;

@Service

public class CategoryServiceImp extends ServiceImpl<CategoryMapper, Category> implements CategoryService {

    @Autowired
    private DishService dishService;

    @Lazy
    @Autowired
    private SetmealService setmealService;

    @Override
    public void remove(Long id) {

        LambdaQueryWrapper<Dish> dlqw = new LambdaQueryWrapper<>();
        dlqw.eq(Dish::getCategoryId,id);
        int count1 = dishService.count(dlqw);
        if (count1 > 0){
            throw new CustomException("当前分类下关联了菜品，不能删除");
        }

        LambdaQueryWrapper<Setmeal> slqw = new LambdaQueryWrapper<>();
        slqw.eq(Setmeal::getCategoryId,id);
        int count2 = setmealService.count(slqw);
        if (count2 > 0){
            throw new CustomException("当前分类下关联了套餐，不能删除");
        }

        super.removeById(id);
    }
}
